Cert Critical Care(SA) Surg Practice Questions - Sub-specialty Certificate In Critical Care (Surgical) Of The Colleges Of Medicine Of South Africa Exam

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A 34-year-old female presents with severe sub-diaphragmatic intra-abdominal hemorrhage following a gunshot wound to the abdomen. She remains profound shocked (systolic BP 60 mmHg) despite initial blood transfusion. Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) is performed. In which anatomic zone of the aorta should the balloon be inflated for temporary control of sub-diaphragmatic intra-abdominal bleeding?

Zone 4 (Distal to aortic bifurcation into common iliacs) Zone 1 (Left subclavian artery to celiac artery) Zone 2 (Celiac artery to lowest renal artery) Zone 3 (Lowest renal artery to aortic bifurcation)

Correct Answer:

Zone 1 (Left subclavian artery to celiac artery)

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